DE1265640B - Heating device on concrete mixers - Google Patents
Heating device on concrete mixersInfo
- Publication number
- DE1265640B DE1265640B DESCH40689A DESC040689A DE1265640B DE 1265640 B DE1265640 B DE 1265640B DE SCH40689 A DESCH40689 A DE SCH40689A DE SC040689 A DESC040689 A DE SC040689A DE 1265640 B DE1265640 B DE 1265640B
- Authority
- DE
- Germany
- Prior art keywords
- mixing
- steam
- heating device
- blades
- support arms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/46—Arrangements for applying super- or sub-atmospheric pressure during mixing; Arrangements for cooling or heating during mixing, e.g. by introducing vapour
- B28C5/466—Heating, e.g. using steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/95—Heating or cooling systems using heated or cooled stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
- B28C5/163—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis in annularly-shaped containers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Int. α.:Int. α .:
B 28 cB 28 c
Deutsche Kl.: 80 a - 7/35 German class: 80 a - 7/35
Nummer: 1265 640Number: 1265 640
Aktenzeichen: Sch 40689 V/80 aFile number: Sch 40689 V / 80 a
Anmeldetag: 11. Mai 1967 Filing date: May 11, 1967
Auslegetag: 4. April 1968Open date: April 4, 1968
Die Erfindung betrifft eine Heizeinrichtung an Betonmischmaschinen, in denen das Mischen mit Hilfe von Mischschaufeln geschieht, die an Tragarmen befestigt sind und in einem schalen- oder rinnenförmigen Mischraum um die Achse des Mischbehälters rotieren. Es ist bekannt, beim Herstellen von Beton beim Winterbau auf z. B. 90° C erwärmtes Zuschlagwasser zu verwenden, aber die erreichte Wirkung war nicht zufriedenstellend. Es ist ferner bekannt, die Zuschlagmaterialien, d. h. den in den Beton eingehenden Sand, Kies und die Steine, zu erwärmen, welches durch Erwärmen dieser Zuschlagmaterialien in den Silos oder Haufen geschieht, in denen sie aufbewahrt werden.The invention relates to a heating device on concrete mixers, in which the mixing is done with the help of mixing blades attached to support arms are and in a bowl-shaped or channel-shaped mixing space around the axis of the mixing container rotate. It is known that when making concrete during winter construction on z. B. 90 ° C heated aggregate water to use, but the effect obtained was not satisfactory. It is also known that the aggregate materials, d. H. to warm the sand, gravel and stones going into the concrete, whichever by heating these aggregate materials in the silos or piles in which they are stored will.
Das bisher am meisten benutzte Verfahren hierzu ist, Dampf in die Materialsilos oder -haufen einzublasen, wobei der Dampf sich an den kalten Zuschlagmaterialien kondensiert und dabei durch Abgabe seiner großen Kondenswärme diese erwärmt.The most widely used method to date is to blow steam into the material silos or piles, whereby the steam condenses on the cold aggregate materials and thereby releases them its great condensation heats it up.
Dabei wird aber das Kondenswasser so ungleichmäßig verteilt, daß es schwer ist, den vorgeschriebenen Wassergehalt des fertigen Betons einzuhalten. Außerdem werden einige Partien der Zuschlagmaterialien zu stark und zu lange überhitzt, was bei kalkhaltigen Zuschlagmaterialien, die am meisten Anwendung finden, dazu führt, daß der sehr heiße Dampf, dessen Temperatur ungefähr 106° C beträgt, tief in die kalkhaltigen Steine eindringt und diese zum Quellen bringt, wodurch die Gefahr von Frostsprengungen beim Bauen im Winter und bei den fertigen Konstruktionen und Elementen auftritt. Es ist auch bekannt, den Mischbehälter direkt zu erwärmen.However, the condensation water is distributed so unevenly that it is difficult to achieve the prescribed Comply with the water content of the finished concrete. There are also some lots of aggregate materials too strong and overheated for too long, which is most common with calcareous aggregate materials find, leads to the very hot steam, the temperature of which is around 106 ° C, deep in penetrates the calcareous stones and causes them to swell, reducing the risk of frost splintering occurs during construction in winter and in the finished structures and elements. It is also known to heat the mixing container directly.
Der Erfindung liegt die Aufgabe zugrunde, das Erwärmen dieser Materialien mit Hilfe von Dampf in einer solchen Weise durchzuführen, daß der Dampfstrahl oder die Dampfstrahlen ständig neue Materialpartikeln treffen und nur Bruchteile von Sekunden lang auf ein und dieselben Materialpartikeln einwirken. The invention is based on the task of heating these materials with the aid of steam in to be carried out in such a way that the steam jet or jets continually add new particles of material and only act on one and the same material particle for a fraction of a second.
Die Lösung dieser Aufgabe besteht nach der Erfindung darin, daß die Tragarme der Mischschaufeln hohl sind, an ihren von den Mischschaufeln abgekehrten Enden an eine Dampfzuleitung angeschlossen und an den Mischschaufeln Ausströmöffnungen für den Dampf vorhanden sind.The solution to this problem is, according to the invention, that the support arms of the mixing blades are hollow, connected to a steam supply line at their ends facing away from the mixing blades and there are outflow openings for the steam on the mixing blades.
Hierdurch wird erreicht, daß der Dampf an den Stellen in die Zuschlagmaterialien eingeblasen wird, an denen das Umwälzen und Mischen am intensivsten ist.This ensures that the steam is blown into the aggregate materials at the points where the agitation and mixing is most intense.
Da die Tragarme als Dampfzuleitungen benutzt werden, bedürfen diese höchstens einer unwesentlichen Vergrößerung ihres Außendurchmessers.Since the support arms are used as steam supply lines, they only require an insignificant one Enlargement of their outside diameter.
Heizeinrichtung an BetonmischmaschinenHeating device on concrete mixers
Anmelder:
Thomas Schmidt,Applicant:
Thomas Schmidt,
Gustav Erik Hummelsh0j, Bagsvaerd (Dänemark)Gustav Erik Hummelsh0j, Bagsvaerd (Denmark)
Vertreter:Representative:
Dr.-Ing. G. EichenbergDr.-Ing. G. Eichenberg
ίο und Dipl.-Ing. H. Sauerland, Patentanwälte,
4000 Düsseldorf, Cecilienallee 76ίο and Dipl.-Ing. H. Sauerland, patent attorneys,
4000 Düsseldorf, Cecilienallee 76
Als Erfinder benannt:
Gustav Erik Hummelsh0j, Bagsvaerd (Dänemark)Named as inventor:
Gustav Erik Hummelsh0j, Bagsvaerd (Denmark)
Beanspruchte Priorität:Claimed priority:
Dänemark vom 27. Juni 1966 (3315)Denmark June 27, 1966 (3315)
Bei einer zweckmäßigen Ausführungsform der Heizeinrichtung nach der Erfindung sind die Ausströmöffnungen so angeordnet, daß der Dampf in einen hinter jeder Schaufel entstehenden Hohlraum in die zu mischende Masse einströmt, wodurch gesichert wird, daß das Risiko eines Verstopfens der Dampfausströmöffnungen oder des Eindringens von Betonmasse durch diese Öffnungen in die Tragarme vermieden wird.In an expedient embodiment of the heating device according to the invention, the outflow openings are arranged so that the steam enters a cavity behind each blade flows into the mass to be mixed, thereby ensuring that the risk of clogging of the Steam outflow openings or the penetration of concrete mass through these openings into the support arms is avoided.
Die Erfindung ist in der Zeichnung veranschaulicht, die im Schnitt und teilweise schematisch eine
Ausführungsform des Zwangsmischers darstellt.
Der gezeigte Zwangsmischer besteht aus einem Maschinenrahmen 10, auf dem ein Elektromotor 11
mit lotrechter Abtriebswelle sitzt, die mit Hilfe von Keilriemenscheiben 12 und 13 eine zentrale Welle 14
antreibt, die über ein Zahnradreduktionsgetriebe einen oben in der Maschine angeordneten Rotor 15
antreibt, an welchem eine Anzahl senkrecht nach unten gerichteter und unten mit jeweils einer Mischschaufel
versehener Tragarme 4 befestigt ist. Die Mischschaufeln 5 arbeiten auf gewöhnliche Weise in
einem ringförmigen Mischbehälter 6, der mit nicht näher gezeigten Zuführvorrichtungen für die miteinander
zu vermischenden Materialien und für Wasser und mit einem Auslaß für den fertig gemischten Beton
ausgestattet ist.The invention is illustrated in the drawing, which shows, in section and partially schematically, an embodiment of the compulsory mixer.
The compulsory mixer shown consists of a machine frame 10 on which an electric motor 11 with a vertical output shaft sits, which drives a central shaft 14 with the help of V-belt pulleys 12 and 13, which drives a rotor 15 arranged above in the machine, on which a Number of vertically downwardly directed and downwardly provided with a mixing blade support arms 4 is attached. The mixing paddles 5 work in the usual way in an annular mixing container 6, which is equipped with feed devices, not shown in detail, for the materials to be mixed with one another and for water and with an outlet for the ready-mixed concrete.
Die Tragarme 4 sind hohl und mit ihren oberen Enden an ein Rohr 3 angeschlossen, das über eine Stopfbuchse 2 mit einer stationären Dampfzuleitung 1 verbunden ist.The support arms 4 are hollow and connected at their upper ends to a tube 3 which has a Stuffing box 2 is connected to a stationary steam supply line 1.
809 537/174809 537/174
Die hohlen Tragarme 4 bilden unten spaltförmige Ausströmöffnungen 7, die hinter der jeweils zu ihnen gehörigen Mischschaufel 5 liegen und in bezug auf die Bewegungsrichtung der Mischschaufeln 5 nach hinten gerichtet sind.The hollow support arms 4 form below gap-shaped outflow openings 7, which are behind each of them belonging mixing paddle 5 and with respect to the direction of movement of the mixing paddles 5 after are directed backwards.
Während des Betriebes der Mischmaschine werden die Mischschaufeln 5 auf gewöhnliche Weise im Mischbehälter 6 herumbewegt, und da gleichzeitig Dampf unter einem angemessenen, geringen Überdruck durch die Dampfzuleitung 1 zugeführt wird, strömt Dampf durch die Stopfbuchse 2, die Rohre 3, die hohlen Tragarme 4 und die Ausströmöffnungen 7 unmittelbar in den Hohlraum ein, der sich in der in Bewegung befindlichen Masse hinter jeder Mischschaufel 5 bildet. Der Dampf wirkt dadurch auf die Materialien ein, während diese kräftig bewegt und gründlich durchgemischt werden, so daß sie schnell und homogen vom Dampf erwärmt werden, ohne daß irgendein Teil der Materialien für längere Zeit dem Dampf unter stationären Bedingungen ausgesetzt ist.During the operation of the mixing machine, the mixing paddles 5 are moved around in the mixing container 6 in the usual way, and since at the same time steam is supplied through the steam supply line 1 under an appropriate, slight overpressure, steam flows through the stuffing box 2, the pipes 3, the hollow support arms 4 and the outflow openings 7 enter directly into the cavity which is formed in the moving mass behind each mixing blade 5. The steam thereby acts on the materials while they are vigorously agitated and thoroughly mixed so that they are quickly and homogeneously heated by the steam without any part of the materials being exposed to the steam under stationary conditions for long periods of time.
Das Erwärmen läßt sich mit Hilfe geeigneter, nicht gezeigter Steuermittel durch Abmessen der durch die Dampfzuleitung 1 zuströmenden Dampfmenge genau regulieren, und das sich bildende Kondenswasser verteilt sich gleichmäßig in der in Bewegung befindlichen Masse, so daß man dieses beim Bestimmen der Zuschlagwassermenge berücksichtigen und immer einen frischgemischten Beton mit der gewünschten Zusammensetzung und der gewünschten Temperatur herstellen kann.The heating can be done with the help of suitable, not shown control means by measuring the through Precisely regulate the amount of steam flowing into the steam supply line 1 and the condensation water that forms is distributed evenly in the moving mass, so that one can do this when determining the amount of supplementary water take into account and always a freshly mixed concrete with the desired composition and the desired temperature can produce.
Claims (2)
Deutsche Patentschrift Nr. 854 319;
deutsche Auslegeschrift Nr. 1 073 285.Considered publications:
German Patent No. 854 319;
German interpretative document No. 1 073 285.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK331566AA DK111164B (en) | 1966-06-27 | 1966-06-27 | Device for concrete mixers. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1265640B true DE1265640B (en) | 1968-04-04 |
Family
ID=8121500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH40689A Pending DE1265640B (en) | 1966-06-27 | 1967-05-11 | Heating device on concrete mixers |
Country Status (13)
Country | Link |
---|---|
US (1) | US3456926A (en) |
AT (1) | AT288221B (en) |
BE (1) | BE698614A (en) |
CH (1) | CH473659A (en) |
DE (1) | DE1265640B (en) |
DK (1) | DK111164B (en) |
ES (1) | ES340559A1 (en) |
FI (1) | FI42518B (en) |
FR (1) | FR1522908A (en) |
GB (1) | GB1183256A (en) |
NL (1) | NL143459B (en) |
NO (1) | NO120626B (en) |
SE (1) | SE326911B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2003201A1 (en) * | 1969-02-28 | 1970-09-17 | Spemag Ag | Processing and mixing machine |
JPS5140291B1 (en) * | 1970-08-06 | 1976-11-02 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3536304A (en) * | 1968-09-11 | 1970-10-27 | Bernhard V Fejmert | Mixing apparatus |
JPS5110452Y1 (en) * | 1970-01-27 | 1976-03-19 | ||
FR2182610B1 (en) * | 1972-03-13 | 1978-03-03 | Leger Jean | |
SE404153B (en) * | 1977-02-17 | 1978-09-25 | Fejmert Bernhard Valdemar | FORCED MIXERS PREFERABLY FOR CONCRETE |
FR2432925A1 (en) * | 1978-08-09 | 1980-03-07 | Fejmert Bernhard | Low height concrete mixer having annular horizontal drum - in which depending, hollow agitator arms circulate to supply water (sw 11.9.78) |
DE2834903A1 (en) * | 1978-08-09 | 1980-02-21 | Bernhard Valdemar Fejmert | Low height concrete mixer having annular horizontal drum - in which depending, hollow agitator arms circulate to supply water (sw 11.9.78) |
ITMC20010043U1 (en) * | 2001-10-15 | 2003-04-15 | Officine Galletti Omg Srl | LIGHT AND ECONOMIC CRUISE FOR MIXERS FOR CONCRETE, MALTAE SIMILAR. |
ITTV20050020A1 (en) * | 2005-02-08 | 2006-08-09 | Dario Toncelli | MIXER MIXING MACHINE WITH VERTICAL AXIS. |
CN107344396A (en) * | 2016-05-05 | 2017-11-14 | 王勤 | A kind of concrete mixer |
CN112895136A (en) * | 2021-01-20 | 2021-06-04 | 江苏晨日环保科技有限公司 | Three-in-one intelligent production line suitable for multiple types of mortar |
CN114212872B (en) * | 2021-12-17 | 2023-06-06 | 扬州大学 | Stirring type heterogeneous Fenton reactor and organic wastewater treatment method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE854319C (en) * | 1951-04-04 | 1952-11-04 | Guenter Scholz | Method and device for dosing fly ash |
DE1073285B (en) * | 1960-01-14 | Richard Frisse Maschinenfabrik Biemsen-Ahmsen | Mixing and balancing machine for fatty compounds, in particular chocolate compounds with double-cylinder trough |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US738148A (en) * | 1902-12-26 | 1903-09-08 | Baxeres Gold Extraction Company Ltd | Apparatus for extraction of precious metals from their ores. |
US3081983A (en) * | 1959-12-31 | 1963-03-19 | Thibodeaux Clifford | Concrete mixer |
DE1432998C3 (en) * | 1964-04-24 | 1975-12-11 | Wilhelm Loedige | Device for completely emptying a mixing container or the like |
-
1966
- 1966-06-27 DK DK331566AA patent/DK111164B/en unknown
-
1967
- 1967-05-06 NO NO168026A patent/NO120626B/no unknown
- 1967-05-11 AT AT443967A patent/AT288221B/en not_active IP Right Cessation
- 1967-05-11 DE DESCH40689A patent/DE1265640B/en active Pending
- 1967-05-12 CH CH676967A patent/CH473659A/en not_active IP Right Cessation
- 1967-05-12 FR FR106394A patent/FR1522908A/en not_active Expired
- 1967-05-13 ES ES340559A patent/ES340559A1/en not_active Expired
- 1967-05-15 US US638281A patent/US3456926A/en not_active Expired - Lifetime
- 1967-05-17 SE SE06931/67A patent/SE326911B/xx unknown
- 1967-05-18 BE BE698614D patent/BE698614A/xx unknown
- 1967-05-26 GB GB24706/67A patent/GB1183256A/en not_active Expired
- 1967-06-02 FI FI1558/67A patent/FI42518B/fi active
- 1967-06-26 NL NL676708884A patent/NL143459B/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073285B (en) * | 1960-01-14 | Richard Frisse Maschinenfabrik Biemsen-Ahmsen | Mixing and balancing machine for fatty compounds, in particular chocolate compounds with double-cylinder trough | |
DE854319C (en) * | 1951-04-04 | 1952-11-04 | Guenter Scholz | Method and device for dosing fly ash |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2003201A1 (en) * | 1969-02-28 | 1970-09-17 | Spemag Ag | Processing and mixing machine |
JPS5140291B1 (en) * | 1970-08-06 | 1976-11-02 |
Also Published As
Publication number | Publication date |
---|---|
NO120626B (en) | 1970-11-09 |
FI42518B (en) | 1970-04-30 |
GB1183256A (en) | 1970-03-04 |
SE326911B (en) | 1970-08-03 |
ES340559A1 (en) | 1968-06-01 |
NL143459B (en) | 1974-10-15 |
DK111164B (en) | 1968-06-17 |
US3456926A (en) | 1969-07-22 |
CH473659A (en) | 1969-06-15 |
AT288221B (en) | 1971-02-25 |
FR1522908A (en) | 1968-04-26 |
BE698614A (en) | 1967-11-03 |
NL6708884A (en) | 1967-12-28 |
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